<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="test"></div>
    <!-- react核心库 -->
    <script type="text/javascript" src="../js/react.development.js"></script>
    <!-- 引入react-dom -->
    <script type="text/javascript" src="../js/react-dom.development.js"></script>
    <!-- 引入babel,将jsx转化成js -->
    <script type="text/javascript" src="../js//babel.min.js"></script>
    <!--  -->
    <script type="text/babel">
        class Weather extends React.Component{
            // 初始化状态
            state={isHot:false,wind:"微风"}
            render(){
                const {isHot,wind}=this.state;
                return <h1 onClick={this.changeWeather}>今天天气很好{isHot? "炎热":"凉快"},{wind}</h1>
            }
            // changeWeather=()=>{
            //     const isHot=this.state.isHot;
            //     this.setState({isHot:!isHot});
            // }
            changeWeather=function(){
                // console.log(this)
                const isHot=this.state.isHot;
                this.setState({isHot:!isHot});
            }
        }
        ReactDOM.render(<Weather />,document.getElementById("test"));
    </script>
</body>
</html>